Question about Canon CanoScan 3200F Flatbed Scanner

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How do you open case to clean inside of glass

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Lock the carriage first! Remove the two medium-sized Phillips screws under the hinge and the small one over the small plastic cover plate. Remove that cover plate. Slide the top tray (glass and cover) off the frame by pulling laterally in the direction of the hinge. It will snap out if you work on it. Clean the glass. Slide tray back in and seat it securely. Put the large screws in to hold the carriage. You won't be able to screw them in if the cover isn't seated right. Now make sure the 5-conductor ribbon cable that is under the small plastic cover plate gets stuck back in the socket. You just push it into the tiny black socket. I think that tells the scanner what's going on with the cover. Then reinstall the cover plate. Now you should be good to go! Don't forget to unlock the carriage.

Posted on Jan 10, 2011

  • fixya981559 Jul 09, 2011

    After removing the small hinge over the plastic cover plate, be sure to CAREFULLY remove the ribbon cable from the connector, or else it might break when removing the cover. Some units have a piece of double-sided tape on the glass by the buttons to help keep it in place. If you can't easily slide the top tray away from the buttons, carefully pry the top loose starting at the hinge side to make it easier to break the glass free from the tape.

  • fixya981559 Jul 09, 2011

    For streak-free cleaning, use glass cleaner and a piece of newspaper to rub the glass. The newspaper won't leave any fibers behind that would be magnified when scanning at higher resolutions.

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IrishDruid
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SOURCE: HP Scanjet 3400 C

Unfortunately, The 3400 series cannot be cleaned on the underside of the glass. Scanners with the capability of having the under side of the glass cleaned are listed below.

Posted on Oct 04, 2008

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1. Unplug the power cord.
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Steps how to clean scanner glass

1. Unplug the power cord.
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